A320-family/Systems/a320-aircond.xml

<!-- Copyright (c) 2019 Jonathan Redpath (legoboyvdlp) -->

<system name="A320: Air Conditioning">
	<channel name="Valves">
	
		<switch name="/systems/air-conditioning/valves/flow-control-valve-1-cmd">
			<default value="0"/>
			<test logic="OR" value="0">
				/controls/engines/engine[0]/fire-btn eq 1
				<test logic="OR">
					<test logic="AND">
						<test logic="OR">
							/systems/pneumatics/valves/starter-valve-1 ne 0
							/systems/pneumatics/valves/starter-valve-2 ne 0
						</test>
						/gear/gear[1]/wow eq 1
					</test>
					<test logic="AND">
						<test logic="OR">
							/systems/pneumatics/valves/starter-valve-1 ne 0
							<test logic="AND">
								/systems/pneumatics/valves/crossbleed-valve eq 1
								/systems/pneumatics/valves/starter-valve-2 ne 0
							</test>
						</test>
						/gear/gear[1]/wow eq 0
					</test>
				</test>
				/systems/pressurization/ditchingpb eq 1
				/systems/pneumatics/psi/engine-1-psi le 13.8
			</test>
			<test logic="AND" value="1">
				/controls/pneumatics/switches/pack-1 eq 1
			</test>
		</switch>
		
		<switch name="/systems/air-conditioning/valves/flow-control-valve-1-power">
			<default value="0"/>
			<test logic="AND" value="5">
				/systems/failures/pneumatics/pack-1-valve eq 0
				/systems/electrical/bus/dc-ess-shed ge 25 
			</test>
		</switch>
		
		<actuator name="/systems/air-conditioning/valves/flow-control-valve-1">
			<input>/systems/air-conditioning/valves/flow-control-valve-1-cmd</input>
			<rate_limit>/systems/air-conditioning/valves/flow-control-valve-1-power</rate_limit>
		</actuator>
		
	
		<switch name="/systems/air-conditioning/valves/flow-control-valve-2-cmd">
			<default value="0"/>
			<test logic="OR" value="0">
				/controls/engines/engine[1]/fire-btn eq 1
				<test logic="OR">
					<test logic="AND">
						<test logic="OR">
							/systems/pneumatics/valves/starter-valve-1 ne 0
							/systems/pneumatics/valves/starter-valve-2 ne 0
						</test>
						/gear/gear[1]/wow eq 1
					</test>
					<test logic="AND">
						<test logic="OR">
							/systems/pneumatics/valves/starter-valve-2 ne 0
							<test logic="AND">
								/systems/pneumatics/valves/crossbleed-valve eq 1
								/systems/pneumatics/valves/starter-valve-1 ne 0
							</test>
						</test>
						/gear/gear[1]/wow eq 0
					</test>
				</test>
				/systems/pressurization/ditchingpb eq 1
				/systems/pneumatics/psi/engine-2-psi le 13.8
			</test>
			<test logic="AND" value="1">
				/controls/pneumatics/switches/pack-2 eq 1
			</test>
		</switch>
		
		<switch name="/systems/air-conditioning/valves/flow-control-valve-2-power">
			<default value="0"/>
			<test logic="AND" value="5">
				/systems/failures/pneumatics/pack-2-valve eq 0
				/systems/electrical/bus/dc-2 ge 25 
			</test>
		</switch>
		
		<actuator name="/systems/air-conditioning/valves/flow-control-valve-2">
			<input>/systems/air-conditioning/valves/flow-control-valve-2-cmd</input>
			<rate_limit>/systems/air-conditioning/valves/flow-control-valve-2-power</rate_limit>
		</actuator>
		
	</channel>
	
	<channel name="Packs">
		
		<switch name="/systems/air-conditioning/packs/single-pack">
			<default value="0"/>
			<test logic="OR" value="1">
				<test logic="AND">
					/systems/air-conditioning/valves/flow-control-valve-1 eq 0
					/systems/air-conditioning/valves/flow-control-valve-2 eq 1
				</test>
				<test logic="AND">
					/systems/air-conditioning/valves/flow-control-valve-1 eq 1
					/systems/air-conditioning/valves/flow-control-valve-2 eq 0
				</test>
			</test>
		</switch>
	
		<switch name="/systems/air-conditioning/packs/pack-flow">
			<default value="/controls/pneumatics/switches/pack-flow"/>
			<test logic="OR" value="1.2">
				/systems/pneumatics/valves/apu-bleed-valve eq 1
				/systems/air-conditioning/packs/single-pack eq 1
			</test>
		</switch>
		
		<fcs_function name="/systems/air-conditioning/packs/pack-flow-1-calc">
			<function>
				<product>
					<property>/systems/air-conditioning/valves/flow-control-valve-1</property>
					<property>/systems/air-conditioning/packs/pack-flow</property>
				</product>
			</function>
		</fcs_function>
		
		<lag_filter name="/systems/air-conditioning/packs/pack-flow-1">
			<input>/systems/air-conditioning/packs/pack-flow-1-calc</input>
			<c1>5</c1>
		</lag_filter>
		
		<fcs_function name="/systems/air-conditioning/packs/pack-flow-2-calc">
			<function>
				<product>
					<property>/systems/air-conditioning/valves/flow-control-valve-2</property>
					<property>/systems/air-conditioning/packs/pack-flow</property>
				</product>
			</function>
		</fcs_function>
		
		<lag_filter name="/systems/air-conditioning/packs/pack-flow-2">
			<input>/systems/air-conditioning/packs/pack-flow-2-calc</input>
			<c1>5</c1>
		</lag_filter>
	
		<switch name="/systems/air-conditioning/packs/pack-factor">
			<default value="0"/>
			<test logic="AND" value="0.0">
				/systems/air-conditioning/valves/flow-control-valve-1 eq 0
				/systems/air-conditioning/valves/flow-control-valve-2 eq 0
			</test>
			<test logic="OR" value="0.6">
				/systems/air-conditioning/valves/flow-control-valve-1 eq 0
				/systems/air-conditioning/valves/flow-control-valve-2 eq 0
			</test>
			<test logic="AND" value="1.0">
				/systems/air-conditioning/valves/flow-control-valve-1 eq 1
				/systems/air-conditioning/valves/flow-control-valve-2 eq 1
			</test>
		</switch>
		
		<fcs_function name="/systems/air-conditioning/packs/pack-1-outlet-temp-calc">
			<function>
				<ifthen>
					<gt>
						<property>/systems/air-conditioning/valves/flow-control-valve-1</property>
						<value>0.5</value>
					</gt>
					<product>
						<value>0.6363636</value>
						<property>/systems/air-conditioning/valves/flow-control-valve-1</property>
						<property>/systems/pneumatics/precooler/temp-1</property>
					</product>
					<property>/systems/navigation/probes/tat-1/compute-tat</property>
				</ifthen>
			</function>
		</fcs_function>
		
		<lag_filter name="/systems/air-conditioning/packs/pack-1-outlet-temp">
			<input>/systems/air-conditioning/packs/pack-1-outlet-temp-calc</input>
			<c1>0.8</c1>
		</lag_filter>
		
		<fcs_function name="/systems/air-conditioning/packs/pack-2-outlet-temp-calc">
			<function>
				<ifthen>
					<gt>
						<property>/systems/air-conditioning/valves/flow-control-valve-2</property>
						<value>0.5</value>
					</gt>
					<product>
						<value>0.6363636</value>
						<property>/systems/air-conditioning/valves/flow-control-valve-2</property>
						<property>/systems/pneumatics/precooler/temp-2</property>
					</product>
					<property>/systems/navigation/probes/tat-2/compute-tat</property>
				</ifthen>
			</function>
		</fcs_function>
		
		<lag_filter name="/systems/air-conditioning/packs/pack-2-outlet-temp">
			<input>/systems/air-conditioning/packs/pack-2-outlet-temp-calc</input>
			<c1>0.8</c1>
		</lag_filter>
		
		<fcs_function name="/systems/air-conditioning/packs/pack-1-output-temp-calc">
			<function>
				<ifthen>
					<gt>
						<property>/systems/air-conditioning/valves/flow-control-valve-1</property>
						<value>0.5</value>
					</gt>
					<sum>
						<product>
							<value>-1</value>
							<sum>
								<product>
									<value>0.76</value>
									<property>/systems/air-conditioning/packs/pack-1-outlet-temp</property>
								</product>
								<value>37.5</value>
							</sum>
						</product>
						<property>/systems/air-conditioning/packs/pack-1-outlet-temp</property>
					</sum>
					<property>/systems/navigation/probes/tat-1/compute-tat</property>
				</ifthen>
			</function>
		</fcs_function>
		
		<lag_filter name="/systems/air-conditioning/packs/pack-1-output-temp">
			<input>/systems/air-conditioning/packs/pack-1-output-temp-calc</input>
			<c1>0.8</c1>
		</lag_filter>
		
		<fcs_function name="/systems/air-conditioning/packs/pack-2-output-temp-calc">
			<function>
				<ifthen>
					<gt>
						<property>/systems/air-conditioning/valves/flow-control-valve-2</property>
						<value>0.5</value>
					</gt>
					<sum>
						<product>
							<value>-1</value>
							<sum>
								<product>
									<value>0.76</value>
									<property>/systems/air-conditioning/packs/pack-2-outlet-temp</property>
								</product>
								<value>37.5</value>
							</sum>
						</product>
						<property>/systems/air-conditioning/packs/pack-2-outlet-temp</property>
					</sum>
					<property>/systems/navigation/probes/tat-2/compute-tat</property>
				</ifthen>
			</function>
		</fcs_function>
		
		<lag_filter name="/systems/air-conditioning/packs/pack-2-output-temp">
			<input>/systems/air-conditioning/packs/pack-2-output-temp-calc</input>
			<c1>0.8</c1>
		</lag_filter>
		
	</channel>
	
	<channel name="Recirculation">
		
	</channel>
	
	<channel name="Mass flow">
		
		<fcs_function name="/systems/air-conditioning/mass-flow-fresh-kg_s">
			<function>
				<quotient>
					<product>
						<property>/systems/air-conditioning/packs/pack-factor</property>
						<property>/systems/air-conditioning/packs/pack-flow</property>
						<product>
							<property>/systems/pressurization/cabinpsi</property>
							<value>68.9476</value>
						</product>
						<value>0.928</value>
					</product>
					<product>
						<value>2.87</value>
						<property>/systems/air-conditioning/temperatures/cabin-overall-temp-kelvin</property>
					</product>
				</quotient>
			</function>
		</fcs_function>
		
		<switch name="/systems/air-conditioning/recirc/recirc-factor">
			<default value="0"/>
			<test logic="AND" value="0.738095">
				/systems/air-conditioning/packs/pack-flow eq 1.0
			</test>
			<test logic="OR" value="0.5686275">
				/systems/air-conditioning/packs/pack-flow eq 1.2
			</test>
			<test logic="AND" value="0.93998">
				/systems/air-conditioning/packs/pack-flow eq 0.8
			</test>
		</switch>
		
		<fcs_function name="/systems/air-conditioning/mass-flow-total-kg_s">
			<function>
				<sum>
					<product>
						<property>/systems/air-conditioning/recirc/recirc-factor</property>
						<property>/systems/air-conditioning/recirc/recirc-fans</property>
						<property>/systems/air-conditioning/mass-flow-fresh-kg_s</property>
					</product>
					<property>/systems/air-conditioning/mass-flow-fresh-kg_s</property>
				</sum>
			</function>
		</fcs_function>
		
		<fcs_function name="/systems/air-conditioning/mass-flow-cockpit-kg_s">
			<function>
				<product>
					<value>0.14</value>
					<property>/systems/air-conditioning/mass-flow-total-kg_s</property>
				</product>
			</function>
		</fcs_function>
		
	</channel>
	
</system>