{"title":"Waste energy utilization in heat-exchange gas turbine cycles","authors":"Yousef S.H Najjar, Taha K Aldoss","doi":"10.1016/0198-7593(86)90118-9","DOIUrl":"10.1016/0198-7593(86)90118-9","url":null,"abstract":"<div><p>One of the ways that can be used to increase the efficiency of a shaft gas turbine engine is by installing heat exchanger in one of the following two configurations: </p><ul><li><span>1.</span><span><p>1. After the low pressure turbine (usual case);</p></span></li><li><span>2.</span><span><p>2. After the high pressure turbine (suggested).</p></span></li></ul><p>Analysis of ideal cycles as well as a real cycle for both configurations is done by using a computer program, where the following parameters were studied: heat exchanger effectiveness, turbine efficiency, compressor efficiency, ratio of turbine inlet pressure to compressor delivery pressure (<span><math><mtext>P</mtext><msub><mi></mi><mn>3</mn></msub><mtext>P</mtext><msub><mi></mi><mn>2</mn></msub></math></span>), and maximum temperature ratio (<span><math><mtext>T</mtext><msub><mi></mi><mn>3</mn></msub><mtext>T</mtext><msub><mi></mi><mn>1</mn></msub></math></span>).</p><p>From the sensitivity analysis for both configurations the unusual configuration is inferior to the suggested in terms of the relative effects of compressor and turbine efficiencies on the overall efficiency and turbine inlet pressure on overall thermal efficiency and power output. However, the usual method is superior with respect to the relative effects of the compressor and turbine efficiencies on power output.</p></div>","PeriodicalId":100786,"journal":{"name":"Journal of Heat Recovery Systems","volume":"6 4","pages":"Pages 323-334"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0198-7593(86)90118-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80648284","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}
{"title":"4532771 Cooler made of aluminum for stirling engines","authors":"","doi":"10.1016/0198-7593(86)90091-3","DOIUrl":"https://doi.org/10.1016/0198-7593(86)90091-3","url":null,"abstract":"","PeriodicalId":100786,"journal":{"name":"Journal of Heat Recovery Systems","volume":"6 2","pages":"Page iv"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0198-7593(86)90091-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91649266","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}
{"title":"Stability analysis for a salt gradient solar pond","authors":"R.S. Beniwal, Ramvir Singh","doi":"10.1016/0198-7593(86)90225-0","DOIUrl":"10.1016/0198-7593(86)90225-0","url":null,"abstract":"<div><p>Double diffusive (salt and heat) fluid systems with linear gradients with constant thermophysical properties have been studied. A numerical model has been developed to describe the relation between temperature and salinity gradients in salt gradient solar ponds. Stability conditions have been observed from measurements of temperature and salinity distributions over the depth of the pond. We find agreement of the analytical results with the experimental observations made on a laboratory solar pond.</p></div>","PeriodicalId":100786,"journal":{"name":"Journal of Heat Recovery Systems","volume":"6 5","pages":"Pages 381-388"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0198-7593(86)90225-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90365834","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}
{"title":"4524049 Process for concurrent steam generation and metal recovery","authors":"","doi":"10.1016/0198-7593(86)90021-4","DOIUrl":"https://doi.org/10.1016/0198-7593(86)90021-4","url":null,"abstract":"","PeriodicalId":100786,"journal":{"name":"Journal of Heat Recovery Systems","volume":"6 3","pages":"Page iv"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0198-7593(86)90021-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136673300","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}
{"title":"4540874 Control system for electric water heater with heat pump external heat source","authors":"","doi":"10.1016/0198-7593(86)90139-6","DOIUrl":"https://doi.org/10.1016/0198-7593(86)90139-6","url":null,"abstract":"","PeriodicalId":100786,"journal":{"name":"Journal of Heat Recovery Systems","volume":"6 4","pages":"Page vi"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0198-7593(86)90139-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137262599","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}
{"title":"Compressor arrangement for a heat pump installation","authors":"Wilhelm Leitgeb, Siegfrie Schonwald","doi":"10.1016/0198-7593(86)90219-5","DOIUrl":"https://doi.org/10.1016/0198-7593(86)90219-5","url":null,"abstract":"","PeriodicalId":100786,"journal":{"name":"Journal of Heat Recovery Systems","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0198-7593(86)90219-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72283184","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}