Heat Recovery Systems and CHP最新文献_第4页

Thermodynamic design data for absorption heat pump systems operating on water-carrol. Part III: Simultaneous cooling and heating 水卡罗罗吸收式热泵系统的热力学设计数据。第三部分:同时冷却和加热

Heat Recovery Systems and CHP Pub Date : 1995-07-01 DOI: 10.1016/0890-4332(95)90053-5

R. Best, W. Rivera, A. Oskam

引用次数: 0

Software survey section 软件调查组

Heat Recovery Systems and CHP Pub Date : 1995-07-01 DOI: 10.1016/0890-4332(95)90060-8

引用次数: 0

Design, construction and testing of a thermosyphon heat exchanger for medium temperature heat recovery in bakeries 用于烘焙炉中温热回收的热虹吸式热交换器的设计、建造和测试

Heat Recovery Systems and CHP Pub Date : 1995-07-01 DOI: 10.1016/0890-4332(95)90057-8

A.R. Lukitobudi , A. Akbarzadeh, P.W. Johnson , P. Hendy

{"title":"Design, construction and testing of a thermosyphon heat exchanger for medium temperature heat recovery in bakeries","authors":"A.R. Lukitobudi , A. Akbarzadeh, P.W. Johnson , P. Hendy","doi":"10.1016/0890-4332(95)90057-8","DOIUrl":"10.1016/0890-4332(95)90057-8","url":null,"abstract":"<div><p>Using water as the working fluid, air-to-air heat exchangers using thermosyphon heat pipes were designed, constructed and tested under medium temperature (below 300°C) operating conditions. A heat exchanger test rig has been constructed and developed wherein the heated air is recycled to the counterflow heat exchanger. The lengths of both the evaporator section and the condenser section of the heat exchangers were 300 mm and the central adiabatic section was 150 mm. The heat exchangers which were tested used (1) continuous plate finned copper tubes, (2) circular, spirally-finned steel tubes and (3) bare copper tubes for their respective heat pipes. The working fluid was water with a fill ratio of 60% of the evaporator section length. The air face velocity range was from 1.5 to 5 m/s and the heat input into the evaporator section inlet was varied between 4 and 20 kW using electric heating elements. The heat exchangers showed high effectiveness compared with similar heat exchangers using other working fluids, such as Freon 22 (R22). The rectangular plate finned copper thermosyphon heat exchanger had the best performance but there was a limitation on testing this configuration that the adiabatic section temperature operating condition did not exceed 200°C, in order not to exceed the safe working pressure. A steel pipe heat exchanger will be used in the industrial application to which the project is directed.</p><p>This heat exchanger has been designed, manufactured and tested for heat recovery in industry with medium temperatures (lower than 300°C), for example in bakeries to recover flue gas energy from the oven to heat up the proofing oven or other low temperature heating functions.</p></div>","PeriodicalId":100603,"journal":{"name":"Heat Recovery Systems and CHP","volume":"15 5","pages":"Pages 481-491"},"PeriodicalIF":0.0,"publicationDate":"1995-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0890-4332(95)90057-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75611318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 70

Thermodynamic design data for absorption heat pump systems operating on water-carrol. Part I: Cooling 水卡罗罗吸收式热泵系统的热力学设计数据。第一部分:冷却

Heat Recovery Systems and CHP Pub Date : 1995-07-01 DOI: 10.1016/0890-4332(95)90051-9

R. Best, W. Rivera, A. Oskam

引用次数: 0

Performance of a compact, spiral coil heat exchanger 性能紧凑，螺旋盘管热交换器

Heat Recovery Systems and CHP Pub Date : 1995-07-01 DOI: 10.1016/0890-4332(95)90054-3

J.C. Ho, N.E. Wijeysundera, S. Rajasekar, T.T. Chandratilleke

引用次数: 46

An investigation of the factors that determine the attractiveness of cogeneration 对决定热电联产吸引力的因素的调查

Heat Recovery Systems and CHP Pub Date : 1995-07-01 DOI: 10.1016/0890-4332(95)90056-X

J.E.A. Roy-Aikins

引用次数: 7

Thermodynamic design data for absorption heat pump systems operating on water-carrol. Part II: Heating 水卡罗罗吸收式热泵系统的热力学设计数据。第二部分:加热

Heat Recovery Systems and CHP Pub Date : 1995-07-01 DOI: 10.1016/0890-4332(95)90052-7

R. Best, W. Rivera, A. Oskam

引用次数: 6

Does postponed retrofitting save money? 推迟改造能省钱吗?

Heat Recovery Systems and CHP Pub Date : 1995-07-01 DOI: 10.1016/0890-4332(95)90055-1

Stig-Inge Gustafsson

{"title":"Does postponed retrofitting save money?","authors":"Stig-Inge Gustafsson","doi":"10.1016/0890-4332(95)90055-1","DOIUrl":"10.1016/0890-4332(95)90055-1","url":null,"abstract":"<div><p>When a building is to be retrofitted, or refurbished, it is always of importance to study the building as a complete energy system. At least in Sweden, the building process is divided between different professional categories, such as HVAC and ordinary building contractors. It is therefore not surprising that the HVAC contractor wants to maximise his profit by installing large and sophisticated equipment at the same time as the builder or architect wants to design a house with very thick walls and high performing windows. These competing interests will often result in a building where the heating system is not adjusted to the rest of the house, but is instead far too powerful. The recommendation from life-cycle cost analyses has therefore always been to study the building as a whole system and to apply an optimal solution at one specific base year; this is probably always the best solution in order to minimise the life cycle cost, but experience shows that the proprietor of the building often hesitates in doing so. The reason for this is his lack of money. Changing the building into an optimal energy system frequently requires a heavy investment in any one specific year, albeit the best solution in the long run. This paper will discuss what happens to the life-cycle cost when retrofits are postponed so as to fit into the proprietor's “10 yr budget”.</p></div>","PeriodicalId":100603,"journal":{"name":"Heat Recovery Systems and CHP","volume":"15 5","pages":"Pages 469-472"},"PeriodicalIF":0.0,"publicationDate":"1995-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0890-4332(95)90055-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88959163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Fuel cost charged to desalters in co-generation power-desalting plants 向热电联产脱盐厂脱盐商收取的燃料成本

Heat Recovery Systems and CHP Pub Date : 1995-05-01 DOI: 10.1016/0890-4332(95)90005-5

M.A. Darwish

{"title":"Fuel cost charged to desalters in co-generation power-desalting plants","authors":"M.A. Darwish","doi":"10.1016/0890-4332(95)90005-5","DOIUrl":"10.1016/0890-4332(95)90005-5","url":null,"abstract":"<div><p>In combined power-desalting (plants, high available steam (at high pressure temperature) is expanded first in a steam turbine (and thus produces work) before its extraction (from the turbine) as a heat source to the desalters. The amount of energy consumption charged to the predominantly used multi-stage flash (MSF) desalter in this combined heat and power plant is a question of great concern in the Gulf area. The following are among the methods used to answer this questions (i) the available energy of the heat supplied to the desalter; (ii) work loss from the lower pressure stages of the steam turbine due to steam extracted to the desalter; (iii) energy charged if a separate boiler was used to supply the desalter with its required heat; and (iv) the excess energy supplied to the combined power desalting plant as compared to a single purpose power plant producing the same power output. There would be a different rating method of the power producing process associated with any of the above mentioned charging methods. In this paper, the MSF desalting method and its power consumption are outlined, together with the rating method of the power-desalting plants and the energy charged to the desalter methods. These rating methods are applied to real cases of dual purpose plants working in Kuwait.</p></div>","PeriodicalId":100603,"journal":{"name":"Heat Recovery Systems and CHP","volume":"15 4","pages":"Pages 357-368"},"PeriodicalIF":0.0,"publicationDate":"1995-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0890-4332(95)90005-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86638000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Thermal conductivity of wet composite porous media 湿复合多孔介质的热导率

Heat Recovery Systems and CHP Pub Date : 1995-05-01 DOI: 10.1016/0890-4332(95)90006-3

M.K. Sarwar, P. Majumdar

引用次数: 26