Analysis of the application of the heat loss recovery system for the drive of process equipment

2021 ◽  
Author(s):  
A. M. Kalashnikov ◽  
A. A. Kapelyukhovskaya
Author(s):  
V. L. Yusha ◽  
◽  
G. I. Chernov ◽  
D. V. Rubtsov ◽  
S. L. Terentjev ◽  
...  

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Haryono MT

Abstract. Pasawahan Village, Tarogong Kaler District, Garut Regency has relatively abundant biomass potential in the form of rice husks. In addition, the village also has a business unit of chickhen farm. At the stage of enlargement of chicks or Day Old Chicks, a heating system is needed to maintain of the air condition until the enlargement step of the chicks to keep them warm. The use of heating systems with electric lights was caused a high cost relatively for enlargement of chicks. A potential alternative to overcome these problems is a heating system by utilizing heat from the rice husk gasification process. The aim of this community service program is to design, manufacture, and install a heat recovery system from the rice husk gasification to meet the heat requirement as a warming medium for enlargement of chicks. To achieve these objectives, design of process equipment for heat recovery from rice husk gasification is carried out using the short cut method. This program has succeeded in designing and manufacturing equipment and systems for the heat recovery process from the rice husk gasification.Keywords: Day old chicks, gasification, heat recovery, rice husk.Abstrak. Desa Pasawahan, Kecamatan Tarogong Kaler, Kabupaten Garut memiliki potensi biomassa relatif berlimpah berupa sekam padi. Selain itu, desa tersebut juga memiliki unit usaha peternakan ayam petelur. Pada tahap pembesaran anakan ayam atau Day Old Chicks diperlukan sistem pemanas untuk mengkondisikan udara di kanadang pembesaran anakan ayam tetap hangat. Pemakaian sistem pemanas dengan lampu listrik relatif membebani biaya pemeliharaan ayam. Alternatif potensial untuk mengatasi permasalahan tersebut adalah sistem pemanas dengan memanfaatkan panas dari proses gasifikasi sekam padi. Tujuan program pengabdian kepada masyarakat ini adalah merancang, membuat, dan menginstalasi sistem pengambilan kembali panas gasifikasi sekam padi untuk memenuhi kebutuhan panas sebagai media penghangat anakan ayam. Untuk mencapai tujuan tersebut, dilakukan perancangan peralatan proses dengan metode short cut. Program ini telah berhasil merancang dan membuat peralatan dan sistem proses pengambilan kembali panas gasifikasi dari sekam padi tersebut.Kata Kunci: Anakan ayam, gasifikasi, pemungutan panas, sekam padi.


2020 ◽  
Author(s):  
Marcio Fontana ◽  
Galdir Damasceno Reges ◽  
Ricardo André Oliveira dos Reis ◽  
Raimundo Jorge Abreu de Jesus ◽  
Carlos Stênio Morais ◽  
...  

2021 ◽  
Vol 11 (3) ◽  
pp. 941
Author(s):  
Zhongshen Li ◽  
Ling Su ◽  
Tianliang Lin

Overflow loss is one of the main reasons for the inefficiency of the hydraulic system. Aiming at the overflow loss in the hydraulic system, an energy recovery system based on a hydraulic motor and generator is proposed. Further, a pressure monitoring and control strategy based on variable speed control for electric generator is adopted, which can control the pressure differential between the inlet and outlet of the proportional relief valve as a small value, and achieve the purpose of energy recovery by reducing the loss of the pressure differential between the inlet and outlet of the relief valve. Through establishing a simulation system model and test platform, the stability, step response characteristics and energy saving of the system are studied. The results show that the energy recovery unit at the outlet of the relief valve does not affect the normal operation of the relief valve, but also greatly reduces the pressure regulation deviation. Besides, the efficiency of overflow loss recovery system about is 67%.


1990 ◽  
Author(s):  
◽  
David Michael Fiddler

Increasing fuel prices have forced marine engineers and diesel engine manufacturers to look at methods of. reducing fuel consumption without a loss in output power. Engineers are always Investigating the following points: (1) decreasing the specific fuel consumption (2) enabling engines to use worse fuels ... (3) extending part load capability (4) using as much waste heat as possible. The sources of heat loss are investigated and the design of an efficient heat recovery system has been evaluated for Ideal temperature and heat conditions. after taking lnto consideration the various methods of heat recovery that are possible on the fishing trawler MFV Roxana Bank. Sources of heat loss identified by engine manufacturers are found primarily in engine cooling water and exhaust systems. These methods are investigated and extra heat transfer systems have become apparent. The use of exhaust gas boilers in diesel engine installations has become widespread as there is always a demand for heating services regardless of vessel type. The predominant form of heat transfer on the Roxana Bank is by forced convection and fluids must always remain in a turbulent state when passing through heat exchange apparatus. The introduction to heat exchangers shows that a high degree of turbulence in both primary and secondary fluids will the overall heat transfer coefficient and also reduce fouling. The design parameters of the heat recovery systems discussed as suitable for the Roxana Bank require the existing cooling water system to be scrapped and a fresh water system with one central cooler to be designed with a high temperature and a low temperature circuit together with a variable speed pump arrangement. should be fitted with such central cooling systems for a number of reasons. The central cooler system Is discussed In detail and it is shown that existing ships and/or new buildings The heat recovery system requires a certain degree of automation to prevent undercooling of the main engine systems and to maintain set Inlet and outlet temperatures to makers specifications. After attending the Roxana Bank on the 09/10 November 1989, the monitored operati~g parameters show a marked deviation to the Ideal temperatures, particularly In the cylinder cooling water circuit ... temperatures. The adverse effects these deviations have on the heat recovery and combined engine load fluctuations found on the Roxana Bank show that steady state heat recovery Is difficult to achieve on this particular type of vessel. Through calculation it Is shown that the envisaged steam turbine alternator is not practical due to the combination of low feed water inlet temperatures to the boiler and insufficient driving steam. The consequence of the reduction in electrical load on the power take off alternators have on the exhaust gas mass flow rates due to reduced engine load are also discussed. A brief mention is also made of organic fluid and thermal oil systems as a form heat recovery and possibilities for efficient heat transfer using these systems. ii Recommendations are made to Irvin and Johnson with regards to a centralised cooling system and the benefits that can be realised with regard to more efficient heat exchanger operations, but that heat recovery on the Roxana Bank from the proposed sources is not a viable proposition.


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