Mass Heat Capacity of Building Materials

Mass heat capacity of building materials

Mass Heat Capacity of Building Materials 1

(Usually of interest to builders and solar designers)

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2001 Eastern North America heat wave

A rather cool and uneventful summer along the East Coast of the United States (with a more average heat pattern occurring in the Midwest/Great Lakes regions) changed abruptly when a ridge of high pressure centered off the coast of South Carolina strengthened in late July. It began in early August for areas of the Midwest and western Great Lakes before spreading eastward and intensifying. It waned in most areas by the middle of the month, and although fairly short in duration compared with some other continental heat waves, it was very intense at its peak. The high humidity and high temperatures led to major heat wave that overtook the major Northeast Megalopolis. Temperatures in Central Park, New York City reached a peak of 103 F (39 C). The temperature reached 105 F (41 C) in Newark, New Jersey. Meanwhile, in Ontario and Quebec, extreme temperatures were also reported daily during the first week of August. Ottawa recorded its second-hottest day ever when the mercury approached 37 C (99 F) on August 9 and at the Toronto Airport it hit 38 C (100 F) on the same day, the hottest day there since 1955 with four straight days topping 35 C (95 F). Numerous records were shattered during the heatwave. Even in Nova Scotia, surrounded by the relatively cool waters of the Atlantic Ocean, temperatures still broke 35 C (95 F) in some locations. Glace Bay, which has a sub-Arctic climate reached a record-breaking 35.5 C (95.9 F) on August 10. National Football League offensive tackle Korey Stringer suffered a heat stroke during the second day of the Minnesota Vikings preseason training camp and died as a result of complications on August 1, 2001. At least four New Yorkers died of hyperthermia. Chicago had at least 21 deaths.

Mass Heat Capacity of Building Materials 2

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Generators of unwanted heat

Integrated circuits (e.g., CPU and GPU) are the main generators of heat in modern computers. Heat generation can be reduced by efficient design and selection of operating parameters such as voltage and frequency, but ultimately, acceptable performance can often only be achieved by managing significant heat generation. In operation, the temperature of a computer's components will rise until the heat transferred to the surroundings is equal to the heat produced by the component, that is, when thermal equilibrium is reached. For reliable operation, the temperature must never exceed a specified maximum permissible value unique to each component. For semiconductors, instantaneous junction temperature, rather than component case, heatsink, or ambient temperature is critical. Cooling can be changed by: Dust acting as a thermal insulator and impeding airflow, thereby reducing heat sink and fan performance. Poor airflow including turbulence due to friction against impeding components such as ribbon cables, or incorrect orientation of fans, can reduce the amount of air flowing through a case and even create localized whirlpools of hot air in the case. In some cases of equipment with bad thermal design, cooling air can easily flow out through "cooling" holes before passing over hot components; cooling in such cases can often be improved by blocking of selected holes. This can be improved by the use of thermal compounds to even out surface imperfections, or even by lapping.

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Heat Wave Drum and Bugle Corps

Heat Wave Drum & Bugle Corps is an Open Class competitive junior drum and bugle corps based in Tampa Bay, Florida. The corps is a member of Drum Corps International (DCI).

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Heat details

Semi-Final 1March 23, 2008 Gstrow Referee: Jury President:M - exclusion for exceeding two-minute time allowance T - exclusion for touching the tapes X - other exclusion E - retired or mechanical failure F - fell Semi-Final 2April 19, 2008 (2 pm) Wiener Neustadt Referee: Wojciech Grodzki Jury President: None (FMNR Jury Member Susanne Httinger) Austria team was replaced by Latvia team.M - exclusion for exceeding two-minute time allowance T - exclusion for touching the tapes X - other exclusion E - retired or mechanical failure F - fell The Final2008-05-22 (5 pm.) Rawicz, Florian Kapaa Stadium Referee: I. Darago Jury President: S. Lyatosinskyy Attendance: 1,500 Beat Time: 62.16 - Maciej Janowski (POL) in 2nd heatM - exclusion for exceeding two-minute time allowance T - exclusion for touching the tapes X - other exclusion E - retired or mechanical failure F - fell Heat after heat (62.75) Ekloef, Norgaard, Wlbert, Kajzer (E1) (62.16) Janowski, Facher, Gustafsson, Larsen (63.03) Pudel, Lindgren, Hougaard, opaczewski (64.97) Jakobsen, Dilger, Sundstrm, Miturski (63.56) Hougaard, Janowski, Sundstrm, Wlbert(E4) (63.93) Lindgren, Facher, Jakobsen, Kajzer (X) (63.19) Gustafsson, Miturski, Pudel, Norgaard (64.37) Ekloef, Larsen, Lampart, Dilger (E4) (62.61) Janowski, Gustafsson, Jakobsen, Petersen (63.53) Hougaard, Facher, Ekloef, Miturski (64.03) Sundstrm, Pudel, Larsen, Kajzer (E) (63.97) Wlbert, Lindgren, Janowski, Nielsen (65.31) Hougaard, Facher, Sundstrm(X), oaczewski (M) (63.44) Lampart, Wlbert, Lindgren, Larsen (64.66) Janowski, Ekloef, Pudel, Jakobsen (64.59) Wlbert, Hougaard, Gustafsson, Lampart (65.40) Nielsen, Kajzer, Sundstrm, Petersen (E4) (65.59) Wlbert, Gustafsson, Larsen, Lampart (X) (65.03) Lampart, Lindgren, Nielsen, Pudel (65.16) Janowski, Ekloef, Hougaard, Facher

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