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1

Results of verification of the slaughter waste anaerobic fermentation process

100%
Kara J., Pastorek Z., Adamovsky R.
Annals of Warsaw University of Life Sciences - SGGW. Agriculture
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2008
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nr 52 Agric.Forest Eng.
95-101
2
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Temperature changes in heat pump horizontal ground source

100%
Adamovsky R., Neuberger P., Sed'ova M.
Infrastruktura i Ekologia Terenów Wiejskich
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2009
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nr 07
The paper deals with assessment of thermal fields and temperature changes in ground massif with horizontal heat exchanger used as a heat source for a heat pump. Temperatures in the zone of the horizontal ground exchanger are compared with temperatures in a reference land. Changes of heat potential of the soil during the heating period are also assessed. Possibilities of recovery of thermal potential of the ground massif when utilizing vertical and horizontal exchangers are analyzed in the opening part of the paper. The results of the first verification indicated that average temperatures in the horizontal planes of the ground massif did not differ considerably with distance from the exchanger tube. Differences in average temperatures in reference and experimental lands confirmed sufficient heat potential of the ground massif even at the peak of the heating period. The differences in average temperatures reached up to 6.51 K in the end of the heating period while at the beginning of the heating period, the differences in average temperatures dropped to 1.35 K. The differences between maximum and minimum temperatures in the zone of the ground exchanger reached up to 1.9 K at the peak of the heating period and rose to 3.9 K at the beginning and end of the heating period. The first results of our measurements indicate the necessity of accumulation of thermal energy in the soil massif in the summer period like in case of the vertical exchangers.
3
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Analysis of leakage influence within capillary heat pipe recuperative heat exchanger

100%
Adamovsky D., Neuberger P., Adamovsky R.
Infrastruktura i Ekologia Terenów Wiejskich
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2007
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nr 3
The paper analyses the leakage of air-to-air recovery heat exchanger consisting of 100 capillary thermal tubes 1.5 m long and aligned in ten rows. The operation of the recovery exchanger prototype was tested in a pigsty. The analysis focuses on how the exchanger leakage affects the heat utilisation efficiency of the air ducted from the pigsty, changes in supply/exhaust air flow rate ratio, supply air temperature, thermal output obtained, and exchanger’s total thermal and mass balances. The results obtained in in-process measurements and the mass and thermal balances show that the exchange leakage causes the outside supply air to contain 12.1–37.3% of the pigsty exhaust air. The percentage of the pigsty air increases with the increase of mass flow rates of supply and exhaust air. This leakage resulted particularly in a major change in supply and exhaust air mass flow rates, higher moisture content, temperature and thermal flow of the air conducted in the pigsty. The change in air flow rates resulted in ventilation change so that the overpressure ventilation took place instead of balanced ventilation. This change led to increased thermal losses by air penetrating through leaks in the peripheral building structures. Increased supply air moisture content made it necessary to increase ventilation intensity in order to meet the required pigsty air parameters with respect of animal wellbeing and protection of peripheral building structures against dampness deterioration. The thermal flow increase of the air conducted in the pigsty due to the high enthalpy of the pigsty air mixed resulted in the higher secondary heat utilisation efficiency. The actual efficiency, however, was considerably lower. The differences of 2.7 – 14.5% between the exchanger’s measured and actual thermal efficiency according to relation (16) and those of 18.7 – 55.8% between the exchanger’s measured and actual running efficiency (13) increase as the ratio of supply and exhaust air mass flow rates increase.
4
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Modelowanie jednostkowego zużycia energii w cyklach technologicznych chowu trzody chlewnej

100%
Adamovsky R., Adamovsky D., Neuberger P.
Infrastruktura i Ekologia Terenów Wiejskich
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2006
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nr 2/2
Artykuł dotyczy określenia energochłonności czterech podstawowych grup w chowie trzody chlewnej. W wyniku pomiarów eksploatacyjnych oraz analiz teoretycznych uzyskano jednostkowe zużycie energii w odniesieniu do poszczególnych czynności wykonywanych w ramach produkcyjnego cyklu technologicznego. Opracowano proste zależności matematyczne, określające zależność jednostkowego zużycia energii od normatywnych bądź zalecanych wartości eksploatacyjnych dla danej grupy trzody chlewnej. Dokonano również oceny wzajemnych zależności jednostkowego zużycia energii w poszczególnych grupach zabiegów roboczych.
5

Modification of the method for assessment of heat exchangers for heat recuperation from ventilation air

100%
Adamovsky D., Adamovsky R., Rutkowski K.
Annual Review of Agricultural Engineering
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2009
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tom 07
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nr 1
6
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Analyzing temperature changes in the ground massif with a horizontal heat exchanger in the course of the heating season

100%
Adamovsky R., Neuberger P., Sed'ova M.
Infrastruktura i Ekologia Terenów Wiejskich
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2010
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nr 11
The article is devoted to temperature changes in the ground massif with the horizontal heat exchanger as an energy source for a heat pump. The article was aimed at analyzing temperature changes in the ground massif with the horizontal heat exchanger at the beginning, in the course of and at the end of the heating season. Another aim was to analyze temperature differences in the area of the horizontal exchanger and the reference lot. The heat flow utilized in the evaporator of heat pump was extracted from the ground exchanger (nominal output at the condenser was 10.5 kW). Temperatures of the ground massif with the horizontal heat exchanger were measured in its plane in depths of 0.75 m, 0.5 m and 0.25 m. The temperature inside the ground massif on the reference lot and ambient parameters were measured as well. It is obvious that the difference of energetic potentials inside the ground massif with the heat exchanger and on the reference lot is insignificant at the beginning of the heating season. During the heating season, the difference of ground massif energetic potentials increases; at the end it is constant. The difference of temperatures in horizontal planes was not significant at the beginning of the heating season; however, it gradually increased. Maximum differences were detected in the area of the heat exchanger. In higher strata, the difference between temperatures decreases. During a major part of the heating season, temperatures at pipes of the ground exchanger were negative. This fact affected amounts of heat extracted from the ground massif.
7
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Verification of the effects of the secondary heat recovery from ventilation air in an animal house for the fattening of broiler chickens

100%
Adamovsky R., Adamovsky D., Kara J., Neuberger P.
Infrastruktura i Ekologia Terenów Wiejskich
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2008
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nr 06
This paper presents results of the verification of a heat exchanger composed of gravitation thermal pipes installed in a broiler chicken feeding facility. The objective of the study was to verify the possibility of the application of a power management system including a heat recovery system in a heavy-duty environment of a broiler chicken fattening facility and to specify effects of the system upon the specific consumption of energy for space heating and ventilation of the animal house. The calculation of the thermal balance of the animal house documents that the power management system that includes a heat recovery exchanger unit may reduce the thermal capacity of external sources of heat in the animal house by 26.5% even when subject to extreme conditions and at the atmospheric temperature of -12°C and the age of chickens being 1 day. The results of the metering and calculations of the efficiency have proven that the heat exchanger reaches the operational efficiency of 10–47% and thermal efficiency of 20–80% even during the most demanding operational first twenty days of the breeding cycle of broiler chickens. The specific consumption of energy for space heating and ventilation related to 1 kg of the live weight of chicken in the animal house facility A provided with a heat recovery exchanger unit at the average atmospheric temperature during the cycle being 4.3°C amounted to 278.5 Wh. In the animal house B as not provided with the heat recovery exchanger units hosting the same number of chickens and provided with the same process and thermal loss due heat transmission through peripheral structures being one half compared to the animal house A, the specific consumption of energy per 1 kg of the live weight of chicken was 420.5 Wh.
8
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Densification behaviour of carob powder

100%
Akangbe O. L., Adamovsky R., Blahovec J., Rutkowski K.
Infrastruktura i Ekologia Terenów Wiejskich
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2018
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nr IV/1
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