Class information for:
Level 1: GAS ENGINE DRIVEN HEAT PUMP//GAS ENGINE HEAT PUMP//HPGHP

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
25731 274 20.2 37%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
18 4 THERMODYNAMICS//ENERGY & FUELS//ENGINEERING, CHEMICAL 531182
115 3       ENERGY & FUELS//ENERGY AND BUILDINGS//SOLAR ENERGY 70347
506 2             ORGANIC RANKINE CYCLE//EXERGY//HEAT PUMP 15300
25731 1                   GAS ENGINE DRIVEN HEAT PUMP//GAS ENGINE HEAT PUMP//HPGHP 274

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 GAS ENGINE DRIVEN HEAT PUMP authKW 1002978 4% 75% 12
2 GAS ENGINE HEAT PUMP authKW 902683 3% 90% 9
3 HPGHP authKW 557213 2% 100% 5
4 PRIMARY ENERGY RATIO authKW 401189 2% 60% 6
5 FALLING FILM DRAIN WATER HEAT RECOVERY authKW 334328 1% 100% 3
6 OPEN ABSORPTION SYSTEM authKW 334328 1% 100% 3
7 WASTEWATER SOURCE HEAT PUMP authKW 334328 1% 100% 3
8 INDOOR SWIMMING POOL authKW 286560 2% 43% 6
9 DRAIN WATER HEAT RECOVERY authKW 222885 1% 100% 2
10 PUBLIC SHOWER FACILITY authKW 222885 1% 100% 2

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Energy & Fuels 14427 73% 0% 199
2 Thermodynamics 5749 37% 0% 102
3 Construction & Building Technology 4584 22% 0% 60
4 Engineering, Civil 1109 18% 0% 49
5 Mechanics 1077 22% 0% 61
6 Engineering, Mechanical 933 19% 0% 53
7 Physics, Nuclear 239 9% 0% 26
8 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 237 4% 0% 11
9 Engineering, Chemical 149 11% 0% 30
10 Water Resources 104 6% 0% 16

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 AGROFOOD ENGN 111443 0% 100% 1
2 AIR CONDITIONING CYCLE TEAM 111443 0% 100% 1
3 CHICAGO REG OFF 111443 0% 100% 1
4 CONTROL THEORY PLICAT COMPLEX SYST 111443 0% 100% 1
5 CONTROL THEORY PLICAT COMPLEX SYST TIANJIN KE 111443 0% 100% 1
6 ELECT IND GRP 111443 0% 100% 1
7 ENERGY ENVIROBNM 111443 0% 100% 1
8 ETS NAUTICA 111443 0% 100% 1
9 FG UNTERSUCHUNG BEWERTUNG WASSERGEFAHRDENDER ST 111443 0% 100% 1
10 GRP COMPETENCES MECAN FLUIDES PROCEDES ENERGET 111443 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ENERGY AND BUILDINGS 35999 17% 1% 46
2 JOURNAL OF HEAT RECOVERY SYSTEMS 12638 1% 3% 4
3 APPLIED THERMAL ENGINEERING 8759 10% 0% 27
4 ENERGY CONVERSION AND MANAGEMENT 8050 9% 0% 26
5 APPLIED ENERGY 7547 9% 0% 25
6 SOLAR ENERGY 5826 7% 0% 19
7 ENERGY 3709 7% 0% 19
8 INTERNATIONAL JOURNAL OF ENERGY RESEARCH 3591 4% 0% 10
9 BUILDING SERVICES ENGINEERING RESEARCH & TECHNOLOGY 2979 1% 1% 3
10 HEAT RECOVERY SYSTEMS & CHP 2423 1% 1% 3

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 GAS ENGINE DRIVEN HEAT PUMP 1002978 4% 75% 12 Search GAS+ENGINE+DRIVEN+HEAT+PUMP Search GAS+ENGINE+DRIVEN+HEAT+PUMP
2 GAS ENGINE HEAT PUMP 902683 3% 90% 9 Search GAS+ENGINE+HEAT+PUMP Search GAS+ENGINE+HEAT+PUMP
3 HPGHP 557213 2% 100% 5 Search HPGHP Search HPGHP
4 PRIMARY ENERGY RATIO 401189 2% 60% 6 Search PRIMARY+ENERGY+RATIO Search PRIMARY+ENERGY+RATIO
5 FALLING FILM DRAIN WATER HEAT RECOVERY 334328 1% 100% 3 Search FALLING+FILM+DRAIN+WATER+HEAT+RECOVERY Search FALLING+FILM+DRAIN+WATER+HEAT+RECOVERY
6 OPEN ABSORPTION SYSTEM 334328 1% 100% 3 Search OPEN+ABSORPTION+SYSTEM Search OPEN+ABSORPTION+SYSTEM
7 WASTEWATER SOURCE HEAT PUMP 334328 1% 100% 3 Search WASTEWATER+SOURCE+HEAT+PUMP Search WASTEWATER+SOURCE+HEAT+PUMP
8 INDOOR SWIMMING POOL 286560 2% 43% 6 Search INDOOR+SWIMMING+POOL Search INDOOR+SWIMMING+POOL
9 DRAIN WATER HEAT RECOVERY 222885 1% 100% 2 Search DRAIN+WATER+HEAT+RECOVERY Search DRAIN+WATER+HEAT+RECOVERY
10 PUBLIC SHOWER FACILITY 222885 1% 100% 2 Search PUBLIC+SHOWER+FACILITY Search PUBLIC+SHOWER+FACILITY

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 AL KATSAPRAKAKIS, D , (2015) COMPARISON OF SWIMMING POOLS ALTERNATIVE PASSIVE AND ACTIVE HEATING SYSTEMS BASED ON RENEWABLE ENERGY SOURCES IN SOUTHERN EUROPE.ENERGY. VOL. 81. ISSUE . P. 738 -753 18 86% 0
2 ELGENDY, E , SCHMIDT, J , (2014) OPTIMUM UTILIZATION OF RECOVERED HEAT OF A GAS ENGINE HEAT PUMP USED FOR WATER HEATING AT LOW AIR TEMPERATURE.ENERGY AND BUILDINGS. VOL. 80. ISSUE . P. 375 -383 14 100% 3
3 ZHANG, W , WANG, T , ZHENG, SL , PENG, XY , WANG, XL , (2015) EXPERIMENTAL STUDY OF THE GAS ENGINE DRIVEN HEAT PUMP WITH ENGINE HEAT RECOVERY.MATHEMATICAL PROBLEMS IN ENGINEERING. VOL. . ISSUE . P. - 12 92% 0
4 DONG, FJ , LIU, FG , LI, XT , YOU, XY , ZHAO, DF , (2016) EXPLORING HEATING PERFORMANCE OF GAS ENGINE HEAT PUMP WITH HEAT RECOVERY.JOURNAL OF CENTRAL SOUTH UNIVERSITY. VOL. 23. ISSUE 8. P. 1931 -1936 12 86% 0
5 KAMPEL, W , AAS, B , BRULAND, A , (2014) CHARACTERISTICS OF ENERGY-EFFICIENT SWIMMING FACILITIES - A CASE STUDY.ENERGY. VOL. 75. ISSUE . P. 508 -512 10 100% 0
6 BATAINEH, KM , (2015) TRANSIENT ANALYTICAL MODEL OF A SOLAR-ASSISTED INDOOR SWIMMING POOL HEATING SYSTEM.JOURNAL OF ENERGY ENGINEERING. VOL. 141. ISSUE 4. P. - 13 72% 0
7 LIU, HW , ZHOU, QS , ZHAO, HB , (2016) EXPERIMENTAL STUDY ON COOLING PERFORMANCE AND ENERGY SAVING OF GAS ENGINE-DRIVEN HEAT PUMP SYSTEM WITH EVAPORATIVE CONDENSER.ENERGY CONVERSION AND MANAGEMENT. VOL. 123. ISSUE . P. 200 -208 19 48% 0
8 HEPBASLI, A , BIYIK, E , EKREN, O , GUNERHAN, H , ARAZ, M , (2014) A KEY REVIEW OF WASTEWATER SOURCE HEAT PUMP (WWSHP) SYSTEMS.ENERGY CONVERSION AND MANAGEMENT. VOL. 88. ISSUE . P. 700 -722 13 62% 17
9 LIU, HW , ZHOU, QS , ZHAO, HB , WANG, PF , (2015) EXPERIMENTS AND THERMAL MODELING ON HYBRID ENERGY SUPPLY SYSTEM OF GAS ENGINE HEAT PUMPS AND ORGANIC RANKINE CYCLE.ENERGY AND BUILDINGS. VOL. 87. ISSUE . P. 226 -232 15 56% 4
10 CULHA, O , GUNERHAN, H , BIYIK, E , EKREN, O , HEPBASLI, A , (2015) HEAT EXCHANGER APPLICATIONS IN WASTEWATER SOURCE HEAT PUMPS FOR BUILDINGS: A KEY REVIEW.ENERGY AND BUILDINGS. VOL. 104. ISSUE . P. 215 -232 9 82% 8

Classes with closest relation at Level 1


Rank Class id link
1 25147 GLASS BREAKAGE//BINARY LIQUID FILM//LIQUID FILM EVAPORATION
2 2550 GROUND SOURCE HEAT PUMP//GROUND HEAT EXCHANGER//BOREHOLE HEAT EXCHANGER
3 25644 HEAT PUMP DRYER//CLOTHES DRYING//TUMBLER DRYER
4 29858 ADVANCED NIMONICS//BROWN 2250 GG//CO2 VAPOR COMPRESSION CYCLE
5 2408 DISTRICT HEATING//COGENERATION//TRIGENERATION
6 21360 FROST FORMATION//DEFROSTING//AIR SOURCE HEAT PUMP
7 2698 INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID//SCROLL COMPRESSOR//TRANSCRITICAL CYCLE
8 36358 PARTIAL VOLUME DEFLAGRATION//ACOUSTIC ENCLOSURES//CIENCIAS SUELO NUTR PLANTA
9 9081 EXERGY//EXERGY ANALYSIS//INTERNATIONAL JOURNAL OF EXERGY
10 32155 CHEMICAL HEAT PUMP//LIQUID PHASE DEHYDROGENATION//ACETONE HYDROGENATION

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