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	<title>Surface Production Facility &#187; Heat Transfer Theory</title>
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	<description>Oil and Gas Production Facility Design</description>
	<lastBuildDate>Fri, 14 May 2010 03:34:57 +0000</lastBuildDate>
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		<title>Oil Sensible Heat Duty</title>
		<link>http://www.process-facility.com/oil-sensible-heat-duty.html</link>
		<comments>http://www.process-facility.com/oil-sensible-heat-duty.html#comments</comments>
		<pubDate>Sat, 12 Sep 2009 22:27:09 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Process Heat Duty]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=835</guid>
		<description><![CDATA[




The sensible heat duty for the oil phase is:

where Q0 = oil flow rate, bpd
SG = oil specific gravity
C0 = oil specific heat, Btu/lb-°F (Figure 2-13)
T1 = initial temperature, °F
T2 = final temperature, °F
]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Natural Gas Sensible Heat Duty at Constant Pressure</title>
		<link>http://www.process-facility.com/natural-gas-sensible-heat-duty-at-constant-pressure.html</link>
		<comments>http://www.process-facility.com/natural-gas-sensible-heat-duty-at-constant-pressure.html#comments</comments>
		<pubDate>Sat, 12 Sep 2009 15:18:54 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Process Heat Duty]]></category>
		<category><![CDATA[heat transfer]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=825</guid>
		<description><![CDATA[




The sensible heat duty for natural gas at constant pressure is:


Heat capacity is determined at atmospheric conditions and then corrected for temperature and pressure based on reduced pressure and temperature.


The gas pseudo critical pressures and temperatures can be approximated from Figure 2-16 or they can be calculated as weighted averages of the critical temperatures and [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Heat Duty for Multiphase Streams</title>
		<link>http://www.process-facility.com/heat-duty-for-multiphase-streams.html</link>
		<comments>http://www.process-facility.com/heat-duty-for-multiphase-streams.html#comments</comments>
		<pubDate>Sat, 12 Sep 2009 15:14:25 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Process Heat Duty]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=820</guid>
		<description><![CDATA[




When a process stream consists of more than one phase, the process heat duty can be calculated using the following equation:

]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Latent Heat</title>
		<link>http://www.process-facility.com/latent-heat.html</link>
		<comments>http://www.process-facility.com/latent-heat.html#comments</comments>
		<pubDate>Sat, 12 Sep 2009 14:55:15 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Process Heat Duty]]></category>
		<category><![CDATA[Latent Heat]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=811</guid>
		<description><![CDATA[The amount of heat energy absorbed or lost by a substance when changing phases is called &#8220;latent heat.&#8221; When steam is condensed towater, the temperature doesn&#8217;t change, but heat must be extracted from
the steam as it goes through a phase change to water. To change water to steam, heat must be added. When a substance [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Sensible Heat</title>
		<link>http://www.process-facility.com/sensible-heat.html</link>
		<comments>http://www.process-facility.com/sensible-heat.html#comments</comments>
		<pubDate>Sat, 12 Sep 2009 14:42:07 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Process Heat Duty]]></category>
		<category><![CDATA[Sensible Heat]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=806</guid>
		<description><![CDATA[The amount of heat absorbed or lost by a substance that causes a change in the temperature of the substance is sensible heat. It is called sensible heat because it can be measured by the change in temperature it causes. For example, as heat is added to a piece of steel the temperature of that [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Approximate Overall Heat Transfer Coefficient</title>
		<link>http://www.process-facility.com/approximate-overall-heat-transfer-coefficient.html</link>
		<comments>http://www.process-facility.com/approximate-overall-heat-transfer-coefficient.html#comments</comments>
		<pubDate>Wed, 09 Sep 2009 15:32:36 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Mechanisms of Heat Transfer]]></category>
		<category><![CDATA[heat transfer]]></category>
		<category><![CDATA[Heat Transfer Coefficient]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=721</guid>
		<description><![CDATA[The calculation of overall heat transfer coefficient U using the equations previously presented can be rather tedious. Heat transfer specialists have computer programs to calculate this value. There are some quick approximation techniques. Table 2-8 comes from the Gas Processors Suppliers Association&#8217;s Engineering Data Book and gives an approximate value of U for shell and [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Outside Film Coefficient (Shell-and-Tube Exchangers)</title>
		<link>http://www.process-facility.com/outside-film-coefficient-shell-and-tube-exchangers.html</link>
		<comments>http://www.process-facility.com/outside-film-coefficient-shell-and-tube-exchangers.html#comments</comments>
		<pubDate>Wed, 09 Sep 2009 15:26:58 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Mechanisms of Heat Transfer]]></category>
		<category><![CDATA[heat transfer]]></category>
		<category><![CDATA[Outside Film Coefficient]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=715</guid>
		<description><![CDATA[For shell-and-tube heat exchangers with shell-side baffles, the shellside fluid flow is perpendicular to the tubes. In this arrangement, the outside film coefficient can be calculated from the following equation:







]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Outside Film Coefficient (in a Liquid Bath)</title>
		<link>http://www.process-facility.com/outside-film-coefficient-in-a-liquid-bath.html</link>
		<comments>http://www.process-facility.com/outside-film-coefficient-in-a-liquid-bath.html#comments</comments>
		<pubDate>Wed, 09 Sep 2009 15:23:04 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Mechanisms of Heat Transfer]]></category>
		<category><![CDATA[heat transfer]]></category>
		<category><![CDATA[Outside Film Coefficient]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=710</guid>
		<description><![CDATA[The outside film coefficient for a process coil in a liquid bath heater is the result of natural or free convection. Temperature variations in the fluid cause density variations. These density variations in turn cause the fluid to circulate, which produces the free convective heat transfer. For horizontal pipes and tubes spaced more than one [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Inside Film Coefficient</title>
		<link>http://www.process-facility.com/inside-film-coefficient.html</link>
		<comments>http://www.process-facility.com/inside-film-coefficient.html#comments</comments>
		<pubDate>Tue, 08 Sep 2009 21:50:28 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Mechanisms of Heat Transfer]]></category>
		<category><![CDATA[Film Coefficient]]></category>
		<category><![CDATA[heat transfer]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=694</guid>
		<description><![CDATA[The inside film coefficient represents the resistance to heat flow caused by the change in flow regime from turbulent flow in the center of the tube to laminar flow at the tube surface. The inside film coefficient can be calculated from:
(The viscosity of a fluid in lb/hr-ft is its viscosity in centipoise times 2.41.) The [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Overall Heat Transfer Coefficient</title>
		<link>http://www.process-facility.com/overall-heat-transfer-coefficient.html</link>
		<comments>http://www.process-facility.com/overall-heat-transfer-coefficient.html#comments</comments>
		<pubDate>Tue, 08 Sep 2009 21:33:36 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Mechanisms of Heat Transfer]]></category>
		<category><![CDATA[heat transfer]]></category>
		<category><![CDATA[Heat Transfer Coefficient]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=683</guid>
		<description><![CDATA[The overall heat transfer coefficient is a combination of the internal film coefficient, the tube wall thermal conductivity and thickness, the external film coefficient, and fouling factors. That is, in order for the energy to be transferred through the wall of the tube it has to pass through a film sitting on the inside wall [...]]]></description>
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		<slash:comments>0</slash:comments>
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