Investigations of waste heat recovery from bulk milk cooler

Sapali, S. N.; Pise, Ashok T.; Ghewade, Dinkar V.

doi:10.1016/j.csite.2014.09.003

Cited by 17 publications

(8 citation statements)

References 5 publications

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“…Pipe heat exchangers produce a yield of 13,100 kWh of electric energy annually from every thousand litres of milk produced daily [5]. Similar results were obtained by Sapali et al [25,26]. In their experiments, they had 53-65% of recovery of lost heat with milk cooling.…”

Section: Discussionmentioning

confidence: 52%

Biomass Energy Technologies from Innovative Dairy Farming Systems

et al. 2021

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Modern and innovative dairy cattle breeding technologies are highly dependent on the level of mechanization. This article presents modern solutions for dairy cattle breeding, in particular, for livestock buildings, in which longitudinal development is possible in accordance with the farm’s needs as well as with obtaining additional energy from biogas and post-ferment for granulated organic fertilizer. In the analysed technology for milk production, methane fermentation, biogas yield, and the possibility of fertilizer production in the form of granules are considered. The presented modular cattle breeding technology includes sustainable production, which is economic; environmentally friendly, with preconditions in the facility including animal welfare; and socially acceptable, resulting from a high level of mechanization, which ensures both comfortable working conditions and high milk quality. The presented production line is an integral part of the milk production process with the possibility of organic fertilizer being used in the production of healthy food.

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Section: Discussionmentioning

confidence: 52%

Biomass Energy Technologies from Innovative Dairy Farming Systems

et al. 2021

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“…Since the thermal resistance is situated at the flue gases side, the air volume of the flue gases affects the value of K substantially. The larger the flue gases volume, the higher the value of K , and the larger the obtainable heat energy . If the heat energy required by the manufacturing process drops and the flue gases heat extraction requirement drops, then it will be necessary to control the proportional valve (MV‐5) to limit and reduce the flow of hot water entering the ECO, so as to reduce the amount of heat extracted ( Q ).…”

Section: Case Studymentioning

confidence: 99%

“…The larger the flue gases volume, the higher the value of K, and the larger the obtainable heat energy. 20 If the heat energy required by the manufacturing process drops and the flue gases heat extraction requirement drops, then it will be necessary to control the proportional valve (MV-5) to limit and reduce the flow of hot water entering the ECO, so as to reduce the amount of heat extracted (Q). If the flue gases volume remains unchanged, but the flue gases temperature rises from 160°C to 180°C, then the LMTD of the ECO will be increased accordingly.…”

Section: Computation Of Heat Extractionmentioning

confidence: 99%

Developing low temperature recovery technology of waste heat in automobile factory

Chang

Cheng

Wang

2018

Energy Science & Engineering

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The painting operation is an important process in automobile manufacturing process, which not only consumes considerable amount of energy but also affects the environment through the flue gases emitted during the process. A case study in Taiwan was conducted on developing an innovative low‐temperature recovery technology of waste heat automobile industry. The high frequency welding segment technology was built on the site to extract heat close to an acid dew point. When the ambient temperature is changed substantially, the fins and heat pipes are solidly connected to maintain the performance of the heat exchanger. Moreover, the hot water obtained from the waste heat recovery is delivered to pretreatment heating tank the painting shop directly. By improving the energy efficiency on heat transfer, the proposed recovery technology of waste heat in automobile factory has been justified with having the performance 69% higher than conventional design. In order to reduce the effect of CO2 emission on the environmental impact, the temperature at the end of the flue gases is further decreased from 160°C to 110°C. The cost benefit analysis reveals that the payback year is 2.8 years. The innovative heat recovery technology contributes to energy conservation and environmental sustainability.

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“…Locapure and Joshi [3] designed a new system which heat up water using the waste heat from air-conditioning system and improve the coefficient of performance of the system up to 13%. Sapali et al [4] interested by recovering the waste heat from bulk milk coolers for water heating. The COP of the system increased from 3 to 4,8.…”

Section: Introductionmentioning

confidence: 99%

Waste heat recovery from Refrigeration machine

Atoui*,

Slama,

Chaouachi

2019

IJITEE

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With the aim of saving energy and to reduce global warming effect, our work focuses on the valorization of the waste heat evacuated by the condenser of a refrigeration machine (air-conditioner) for the desalination of sea water. In this paper, the conception of a new system combining airconditioning and desalination is realized. The modelling of the heat exchanges of each part of the system is realized. To improve the performance of the system, various experimental tests are represented and discussed. Comparison between simulation and experimental results shows a good agreement and present a courageous motive for the system application.

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Investigations of waste heat recovery from bulk milk cooler

Cited by 17 publications

References 5 publications

Biomass Energy Technologies from Innovative Dairy Farming Systems

Biomass Energy Technologies from Innovative Dairy Farming Systems

Developing low temperature recovery technology of waste heat in automobile factory

Waste heat recovery from Refrigeration machine

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