GB618231A - Improvements in hot air power plant - Google Patents

Improvements in hot air power plant

Info

Publication number
GB618231A
GB618231A GB1461045A GB1461045A GB618231A GB 618231 A GB618231 A GB 618231A GB 1461045 A GB1461045 A GB 1461045A GB 1461045 A GB1461045 A GB 1461045A GB 618231 A GB618231 A GB 618231A
Authority
GB
United Kingdom
Prior art keywords
air
heat exchanger
turbine
supplied
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1461045A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1461045A priority Critical patent/GB618231A/en
Publication of GB618231A publication Critical patent/GB618231A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C1/00Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
    • F02C1/04Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly
    • F02C1/05Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly characterised by the type or source of heat, e.g. using nuclear or solar energy
    • F02C1/06Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly characterised by the type or source of heat, e.g. using nuclear or solar energy using reheated exhaust gas

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)

Abstract

618,231. Elastic-fluid turbines. NETTEL, F., and KREITNER, J. July 8, 1945, No. 14610. '[Class 110 (iii)] [Also in Group XXVII] In a hot-air plant a continuous stream of air is compressed, preheated in a heat exchanger by surface heat transfer of waste heat in the same stream after its expansion, heated further by surface heat transfer of heat released in an external fuel combustion effected at substantially atmospheric pressure, expanded in an engine to substantially atmospheric pressure and cooled while carrying out the preheating, and a portion of the expanded and cooled air is ejected to the atmosphere while another portion of the expanded and cooled air is branched off at a point where by cooling it has reached a predetermined temperature and utilized as compressed air for the external fuel combustion the resultant combustion gases being cooled by transferring heat from them to the stream of compressed air while carrying out the heat transfer of heat released in the external fuel combustion. Fuel mav be injected into the air and burned, the resulting mixture of air and combustion products being supplied to the turbine. The expanded air from the turbine can be supplied to the heater as combustion air either before or after it has passed through the heat exchanger or it may be supplied from part of the way along the heat exchanger. As shown, a compressor 12, 14 with intercooler, compresses air in two stages and supplies it through a heat exchanger 15, to a heater 17 from which it passes to a turbine 20 which drives the compressor and an electric generator 21. Exhaust from the turbine passes back to the heat supply section of the heat exchanger. Combustion air for the furnace of the heater is drawn from this air. Hot air direct from the turbine 20 is branched off to a pulverised fuel nozzle 63 and to ducts 61 in the furnace, the supply being controlled by butterfly valves 61<1>, 62<1>. Cooler air branched off from part of the way along the heat exchanger can be supplied to the bottom of the furnace through valves 54, 56 or alternatively still cooler air from the outlet of the heat exchanger can be used. By means of valves 57<1>, 59<1> either this cooler air or hot air direct from the turbine can be used to transfer the pulverised fuel from a pulverised fuel mill 58 to the nozzle. Combustion products from the heater 17 are also passed through the heat exchanger which is divided into two portions by a partition 15a. The products are exhausted to atmosphere by a forced draught fan 29. It is not essential that the hotter air shall be supplied to the heater as all the air can be drawn from the outlet of the heat exchanger. The air not used for supply to the heater is either exhausted to atmosphere or utilised for room heating, fuel drying, water distillation or other purposes. Arrangements of plant are described in which the exhaust from the turbine is reheated and supplied to a further turbine before passing to the heat exchanger. A byepass may be provided to enable this turbine to be cut out of action. In Fig. 5 (not shown), air is supplied direct from the turbine to a point beneath the front of a travelling grate of the furnace and cooler air supplied at two further points beneath the grate at the centre of the furnace. A fan may be used to draw air from the heat exchanger and supply it to the grate. The temperature at which the air is supplied to the heaters is selected according to the type of furnace used and the condition of the fuel &c.
GB1461045A 1945-06-08 1945-06-08 Improvements in hot air power plant Expired GB618231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1461045A GB618231A (en) 1945-06-08 1945-06-08 Improvements in hot air power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1461045A GB618231A (en) 1945-06-08 1945-06-08 Improvements in hot air power plant

Publications (1)

Publication Number Publication Date
GB618231A true GB618231A (en) 1949-02-18

Family

ID=10044338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1461045A Expired GB618231A (en) 1945-06-08 1945-06-08 Improvements in hot air power plant

Country Status (1)

Country Link
GB (1) GB618231A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969004C (en) * 1952-09-26 1958-04-17 C A Parsons & Company Ltd Heat Gas turbine plant with facility for waste heat recovery
GB2182395A (en) * 1985-11-01 1987-05-13 Foster Wheeler Energy Ltd Utilising gas turbine exhaust in a chemical process plant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969004C (en) * 1952-09-26 1958-04-17 C A Parsons & Company Ltd Heat Gas turbine plant with facility for waste heat recovery
GB2182395A (en) * 1985-11-01 1987-05-13 Foster Wheeler Energy Ltd Utilising gas turbine exhaust in a chemical process plant
GB2182395B (en) * 1985-11-01 1989-09-27 Foster Wheeler Energy Ltd Improvements in chemical process fired heaters, furnaces or boilers

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