CN110057008A - The system for realizing hot and cold, electric trilogy supply collection PV/T Yu earth source heat pump one - Google Patents
The system for realizing hot and cold, electric trilogy supply collection PV/T Yu earth source heat pump one Download PDFInfo
- Publication number
- CN110057008A CN110057008A CN201910424195.5A CN201910424195A CN110057008A CN 110057008 A CN110057008 A CN 110057008A CN 201910424195 A CN201910424195 A CN 201910424195A CN 110057008 A CN110057008 A CN 110057008A
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- water
- pipeline
- photovoltaic cell
- cell panel
- solar photovoltaic
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 17
- 239000013589 supplement Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0057—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground receiving heat-exchange fluid from a closed circuit in the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
- F24F2005/0067—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy with photovoltaic panels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a kind of systems for realizing hot and cold, electric trilogy supply collection PV/T Yu earth source heat pump one, include water cooler, underground pipe, solar photovoltaic cell panel, water tank and is set to indoor fan coil, the evaporator of water cooler is connected with fan coil, the condenser of water cooler is connected with underground pipe, the back copper pipe of solar photovoltaic cell panel is connected with water tank, and underground pipe is connected with the back copper pipe of solar photovoltaic cell panel；Solar photovoltaic cell panel is electrically connected with indoor electrical appliance, and water tank, which is connected with, leads to indoor water supply pipe.The present invention not only can solve the hot stack of earth source heat pump, can also realize hot and cold, electric trilogy supply simultaneously, and the ladder that the energy may be implemented utilizes, and improves running efficiency of system, reduces initial cost.
Description
Technical field
It is specifically a kind of the present invention relates to the utilization of regenerative energy technical field such as building energy conservation, solar energy and geothermal energy
The system for realizing hot and cold, electric trilogy supply collection PV/T Yu earth source heat pump one, for solving the problems, such as earth source heat pump hot stack and reality
Tellurian heat is now transferred to the function of the outer space.
Background technique
Photovoltaic roof is one of the major way of current Photovoltaic Building Integration, in order to improve photovoltaic efficiency, mainly
Way be to be cooled down in battery back-sheet with medium, water is since viscosity is small, specific heat is big and density is big, to be easy to obtain be most often to adopt
Medium.Daytime, solar panel can also heat domestic water other than exporting electric energy, realize power generation and add
The economic benefits and social benefits function of hot water.Night, solar panel in addition to the heat convection with surrounding air, also with temperature 0K or so it is outer too
Sky carries out radiation heat transfer, so that solar panel surface temperature is dropped to far below environment temperature.
Ground-source heat pump system can also realize the function of across season storage heat because of the friendly to environment, be air-conditioning in recent years
A kind of wider power-saving technology is promoted the use of in industry engineering.But when ground-source heat pump system summer operation, due to soil heat dissipation speed
Rate causes pipe laying surrounding soil temperature slowly and increases i.e. heat build-up phenomenon, is to add cooling tower to solve this phenomenon traditional method
Auxiliary heat dissipation.As a result, initial cost increases (two sets of cooling systems of cooling tower+earth source heat pump), operating cost is not saved, and
Heat has still been spilt into atmospheric environment, does not alleviate tropical island effect.
Summary of the invention
The purpose of the present invention is not solving the hot stack phenomenon of ground-source heat pump system for the prior art, a kind of realization is provided
The system of hot and cold, electric trilogy supply collection PV/T and earth source heat pump one, not only can solve the hot stack of earth source heat pump, can be with
It realizes hot and cold, electric trilogy supply simultaneously, and the ladder that the energy may be implemented utilizes, to improve running efficiency of system, reduces and just throw
Money.
Technical scheme is as follows:
A kind of system for realizing hot and cold, electric trilogy supply collection PV/T Yu earth source heat pump one, includes water cooler, buried
Pipe, solar photovoltaic cell panel, water tank and it is set to indoor fan coil, the water cooler includes to circuit sequentially
Evaporator, compressor, condenser and the throttle valve of connection, it is characterised in that: draw the first pipe from the water outlet of the evaporator
It is connected after road and the first water pump of connection with the water inlet end of the fan coil, the water outlet of the fan coil passes through the second pipe
Road is connected with the backwater end of the evaporator；From the water outlet of the condenser draw third pipeline and connect the first valve and
It is connected after second water pump with the water inlet end of the underground pipe, draw the 4th pipeline from the water outlet of the underground pipe and successively connects
It is connected after connecing second and third valve with the backwater end of the condenser；From the back copper pipe of the solar photovoltaic cell panel
Water outlet draws the 5th pipeline and is connected after connecting the 4th valve with the water inlet of the water tank, from the water outlet of the water tank
It draws the 6th pipeline and is sequentially connected the water inlet end phase after the five, the six valves with the back copper pipe of the solar photovoltaic cell panel
Connection；
Draw the 7th pipeline from the water outlet of the underground pipe and connect after the 7th valve and third water pump with the described 5th,
The 6th pipeline between six valves is connected, and draws the 8th pipe from the water outlet of the back copper pipe of the solar photovoltaic cell panel
The 4th pipeline behind road and the 8th valve of connection between described two, three valves is connected；The solar photovoltaic cell panel
Electric energy output end is connected by current supply circuit with indoor electrical appliance, and the discharge ends of the water tank, which are connected with, leads to indoor confession
Water lines.
The system of realization hot and cold, electric the trilogy supply collection PV/T and earth source heat pump one, it is characterised in that: the water
The side of case is equipped with water supplement port and is connected with water supply pipe.
The system of described realization hot and cold, electric trilogy supply collection PV/T and earth source heat pump one, it is characterised in that: described the
One, two, three water pumps are all made of circulating pump.
The system of realization hot and cold, electric the trilogy supply collection PV/T and earth source heat pump one, it is characterised in that: described
The first, second, third and fourth, five, six, seven, eight valves be all made of flow control valve.
Beneficial effects of the present invention:
1, the present invention solves the difficulties and hot stack phenomenon of earth source heat pump operation；
2, the ladder that the present invention realizes the energy utilizes, and improves running efficiency of system；
3, the present invention realizes hot and cold, electric trilogy supply simultaneously；
4, the present invention realizes the waste heat in soil being transferred to the outer space, and soil environment can be made to keep constant and right
Atmospheric environment is friendly；
5, the present invention saves cost and operating cost without increasing cooling tower auxiliary heat dissipation.
Detailed description of the invention
Fig. 1 is structure of the invention schematic diagram.
Specific embodiment
Referring to Fig. 1, a kind of system for realizing hot and cold, electric trilogy supply collection PV/T Yu earth source heat pump one, includes cooling-water machine
Group 1, underground pipe 2, solar photovoltaic cell panel 3, water tank 4 and the fan coil 6 for being set to interior 5, water cooler 1 include
Evaporator 1-1, compressor 1-2, condenser 1-3 and the throttle valve 1-4 for circuiting sequentially connection, draw from the water outlet of evaporator 1-1
Out the first pipeline 7 and connect first circulation pump 8 after be connected with the water inlet end of fan coil 6, the water outlet of fan coil 6 passes through
Second pipeline 9 is connected with the backwater end of evaporator 1-1；Third pipeline 10 is drawn from the water outlet of condenser 1-3 and connects the
It is connected after one flow control valve 11 and second circulation pump 12 with the water inlet end of underground pipe 2, draws the from the water outlet of underground pipe 2
Four pipelines 13 are simultaneously connected after being sequentially connected second and third flow control valve 14,15 with the backwater end of condenser 1-3；From solar energy
The water outlet of the back copper pipe of photovoltaic battery panel 3 draw the 5th pipeline 16 and connect after the 4th flow control valve 17 with water tank 4
Water inlet is connected, from the water outlet of water tank 4 the 6th pipeline 18 of extraction and after being sequentially connected the five, the six flow control valves 19,20
It is connected with the water inlet end of the back copper pipe of solar photovoltaic cell panel 3；
After drawing the 7th pipeline 21 from the water outlet of underground pipe 2 and connect the 7th flow control valve 22 and third circulating pump 26
The 6th pipeline 18 between the five, the six flow control valves 19,20 is connected, from the back copper pipe of solar photovoltaic cell panel 3
Water outlet draw the 8th pipeline 23 and connect after the 8th flow control valve 24 between two, three flow control valves 14,15 the
Four pipelines 13 are connected；The electric energy output end of solar photovoltaic cell panel 3 passes through current supply circuit (including battery) and interior 5
Electrical appliance is connected, and the discharge ends of water tank 4 are connected with the water supply pipe 25 for leading to interior 5, and the side of water tank 4 is equipped with water supplement port simultaneously
It is connected with water supply pipe.
Below in conjunction with attached drawing, the present invention is further illustrated:
In summer operation, the operational mode of day and night is respectively as follows: the present invention
1, the operational mode on daytime: water cooler 1 starts, and the chilled water that evaporator 1-1 is generated is through the first pipeline 7 by first
Circulating pump 8 is delivered to the fan coil 6 of interior 5, freezes to interior 5, the return water being heated is back to steaming through the second pipeline 9
Device 1-1 is sent out, realizes indoor 5 refrigeration cycle；Condensation heat with water flow through third pipeline 10 by second circulation pump 12 be delivered to it is buried
Pipe 2, then soil is diffused to through underground pipe 2, return water is back to condenser 1-3, detailed process through the 4th pipeline 13 are as follows: condenser 1-
3 water outlet-first flow 11-second circulation of regulating valve pumps 12-underground pipe 2-second flow regulating valve 14-third streams
The backwater end of 15-condenser of adjustable valve 1-3, during this period, the 7th flow control valve 22 are closed, to realize refrigeration
Function.
At the same time, the solar energy of a part is switched to the electric energy of high-quality by solar photovoltaic cell panel 3, and is stored in storage
In battery, powered from battery to interior 5；The thermal energy that solar photovoltaic cell panel 3 is discharged is by the water band in its back copper pipe
Enter water tank 4, hot water is delivered to water tank 4 by the back copper pipe of solar photovoltaic cell panel 3 through the 5th pipeline 16, and cold water is then through the 6th
Pipeline 18 is delivered to the back copper pipe of solar photovoltaic cell panel 3 by water tank 4, and water tank 4 is provided by water supply pipe 25 to interior 5
Hot water for life, detailed process are as follows: the 5th 19-the six 20-sun of flow control valve of flow control valve of water outlet-of water tank 4
The water inlet of the 17-water tank of flow control valve 4 of back copper pipe-the 4th of energy photovoltaic battery panel 3, during this period, the 8th flow tune
It saves valve 24 to close, to realize the function of power generation, power supply, water heating and supplying hot water.
2, the operational mode at night: refrigeration, power supply and heat water supply functions are same as above；Condensation heat flows through third pipeline 10 with water
Underground pipe 2 is delivered to by second circulation pump 12, then solar-energy photo-voltaic cell is delivered to by third circulating pump 26 through the 7th pipeline 21
The back copper pipe of plate 3 is changed by solar photovoltaic cell panel 3 with the heat convection of surrounding air and with the radiation of the outer space
Heat, return water are back to condenser 1-3 through the 8th pipeline 23, to can play good cooling effect to soil, solve heat
Packing phenomenon, detailed process are as follows: the water outlet of condenser 1-3-first flow 11-second circulation of regulating valve pumps 12-underground pipes
The-the eight flow of back copper pipe of the 6th flow control valve 20- solar photovoltaic cell panel 3 of the 7th flow control valve 22- of 2- is adjusted
The backwater end of valve 24- third flow control valve 15- condenser 1-3, during this period, second, four, five flow control valves 14,17,19
It is turned off.
The operational mode of day and night is described above, it was confirmed that be able to solve according to the technical solution of the present invention
Ground source heat pump soil thermal accumulate problem feasibility, the operational mode on daytime also simultaneously confirm using the system realize it is cold,
The trilogy supply of heat, electricity.
The present invention be directed to hot stack phenomenons generated when ground-source heat pump system summer operation to propose a kind of feasibility
Solution, i.e., will in a manner of radiating solar photovoltaic cell panel in the time-division at night by the heat spilt into daytime in soil
Heat is transferred in surrounding air and the outer space, and such soil moisture has obtained preferable recovery at night, ensure that water cooler
In the efficient operation on daytime, which has important economy and society meaning.
Above embodiment is only that the preferred embodiments of the invention are described, not to protection model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The modification and improvement that case is made should all be fallen within the scope of protection of the present invention.
Claims (4)
1. a kind of system for realizing hot and cold, electric trilogy supply collection PV/T Yu earth source heat pump one, include water cooler, underground pipe,
Solar photovoltaic cell panel, water tank and it is set to indoor fan coil, the water cooler includes the company of circuiting sequentially
Evaporator, compressor, condenser and the throttle valve connect, it is characterised in that: draw the first pipeline from the water outlet of the evaporator
And be connected after connecting the first water pump with the water inlet end of the fan coil, the water outlet of the fan coil passes through the second pipeline
It is connected with the backwater end of the evaporator；Third pipeline is drawn from the water outlet of the condenser and connects the first valve and the
It is connected after two water pumps with the water inlet end of the underground pipe, draw the 4th pipeline from the water outlet of the underground pipe and is sequentially connected
It is connected after second and third valve with the backwater end of the condenser；From going out for the back copper pipe of the solar photovoltaic cell panel
Water end (W.E.) draws the 5th pipeline and is connected after connecting the 4th valve with the water inlet of the water tank, draws from the water outlet of the water tank
The 6th pipeline and it is connected after being sequentially connected the five, the six valves with the water inlet end of the back copper pipe of the solar photovoltaic cell panel out
It connects；
Draw the 7th pipeline from the water outlet of the underground pipe and connect after the 7th valve and third water pump with the five, the six valve
The 6th pipeline between door is connected, and draws the 8th pipeline simultaneously from the water outlet of the back copper pipe of the solar photovoltaic cell panel
The 4th pipeline after the 8th valve between described two, three valves is connected to be connected；The electric energy of the solar photovoltaic cell panel
Output end is connected by current supply circuit with indoor electrical appliance, and the discharge ends of the water tank, which are connected with, leads to indoor water supplying pipe
Road.
2. the system according to claim 1 for realizing hot and cold, electric trilogy supply collection PV/T and earth source heat pump one, feature
Be: the side of the water tank is equipped with water supplement port and is connected with water supply pipe.
3. the system according to claim 1 for realizing hot and cold, electric trilogy supply collection PV/T and earth source heat pump one, feature
Be: first, second and third water pump is all made of circulating pump.
4. the system according to claim 1 for realizing hot and cold, electric trilogy supply collection PV/T and earth source heat pump one, feature
Be: first, second, third and fourth, five, six, seven, eight valves are all made of flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910424195.5A CN110057008A (en) | 2019-05-21 | 2019-05-21 | The system for realizing hot and cold, electric trilogy supply collection PV/T Yu earth source heat pump one |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910424195.5A CN110057008A (en) | 2019-05-21 | 2019-05-21 | The system for realizing hot and cold, electric trilogy supply collection PV/T Yu earth source heat pump one |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110057008A true CN110057008A (en) | 2019-07-26 |
Family
ID=67323746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910424195.5A Pending CN110057008A (en) | 2019-05-21 | 2019-05-21 | The system for realizing hot and cold, electric trilogy supply collection PV/T Yu earth source heat pump one |
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| Country | Link |
|---|---|
| CN (1) | CN110057008A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793234A (en) * | 2019-09-30 | 2020-02-14 | 珠海格力电器股份有限公司 | Heat pump system with double media PVT coupled for night radiation, control method and intelligent household appliance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398505A (en) * | 2013-03-12 | 2013-11-20 | 庞怡 | Combined heat pump and solar hot water heating and ventilation system |
| CN103925735A (en) * | 2014-03-28 | 2014-07-16 | 山东中瑞新能源科技有限公司 | System and method for coupling passive space radiation refrigeration with buried-pipe ground-source heat pump |
| CN105953321A (en) * | 2016-04-29 | 2016-09-21 | 内蒙古润泰新能源科技有限公司 | Solar multi-production energy system |
| WO2018124875A1 (en) * | 2016-12-31 | 2018-07-05 | Universiti Kebangsaan Malaysia (Ukm) | A grid connected system incorporating photovoltaic thermal (pv/t) panel with nanofluids |
| CN210070110U (en) * | 2019-05-21 | 2020-02-14 | 安徽建筑大学 | System for realizing integration of cold, heat and electricity triple supply PV/T and ground source heat pump |
-
2019
- 2019-05-21 CN CN201910424195.5A patent/CN110057008A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398505A (en) * | 2013-03-12 | 2013-11-20 | 庞怡 | Combined heat pump and solar hot water heating and ventilation system |
| CN103925735A (en) * | 2014-03-28 | 2014-07-16 | 山东中瑞新能源科技有限公司 | System and method for coupling passive space radiation refrigeration with buried-pipe ground-source heat pump |
| CN105953321A (en) * | 2016-04-29 | 2016-09-21 | 内蒙古润泰新能源科技有限公司 | Solar multi-production energy system |
| WO2018124875A1 (en) * | 2016-12-31 | 2018-07-05 | Universiti Kebangsaan Malaysia (Ukm) | A grid connected system incorporating photovoltaic thermal (pv/t) panel with nanofluids |
| CN210070110U (en) * | 2019-05-21 | 2020-02-14 | 安徽建筑大学 | System for realizing integration of cold, heat and electricity triple supply PV/T and ground source heat pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793234A (en) * | 2019-09-30 | 2020-02-14 | 珠海格力电器股份有限公司 | Heat pump system with double media PVT coupled for night radiation, control method and intelligent household appliance |
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