def query(c):
"""Lists decay heats of all nuclides with respect to time for all facilities.
Args:
c: connection cursor to sqlite database.
"""
# gives avogadro's number with a kg to g conversion
ACT_CONV = 1000 * 6.022e23
# converts from MeV/s to MW
Q_CONV = 1.602e-19
# SQL query returns a table with the nuclides (and their masses) transacted from reactor
sql = ("SELECT resources.TimeCreated, compositions.NucId,"
"compositions.MassFrac*resources.Quantity ")
sql += (
"FROM resources "
"INNER JOIN compositions ON resources.QualId = compositions.QualId "
"INNER JOIN transactions ON resources.TimeCreated = transactions.Time "
"WHERE transactions.SenderId=13 "
"GROUP BY resources.TimeCreated, compositions.NucId "
"ORDER BY resources.TimeCreated;")
cur = c.execute(sql)
results = cur.fetchall()
alldecayheats = []
# Calculates decay heat (MW) at each timestep
for time_step, nuc, mass in results:
act = ACT_CONV * mass * data.decay_const(nuc) / data.atomic_mass(nuc)
dh = Q_CONV * act * data.q_val(nuc)
row = (time_step, nuc, dh)
alldecayheats.append(row)
return alldecayheats
def query(c):
"""Lists decay heats of all nuclides with respect to time for all facilities.
Args:
c: connection cursor to sqlite database.
"""
# gives avogadro's number with a kg to g conversion
ACT_CONV = 1000*6.022e23
# converts from MeV/s to MW
Q_CONV = 1.602e-19
# SQL query returns a table with the nuclides (and their masses) transacted from reactor
sql = ("SELECT resources.TimeCreated, compositions.NucId,"
"compositions.MassFrac*resources.Quantity ")
sql += ("FROM resources "
"INNER JOIN compositions ON resources.QualId = compositions.QualId "
"INNER JOIN transactions ON resources.TimeCreated = transactions.Time "
"WHERE transactions.SenderId=13 "
"GROUP BY resources.TimeCreated, compositions.NucId "
"ORDER BY resources.TimeCreated;")
cur = c.execute(sql)
results = cur.fetchall()
alldecayheats = []
# Calculates decay heat (MW) at each timestep
for time_step, nuc, mass in results:
act = ACT_CONV * mass * data.decay_const(nuc) / data.atomic_mass(nuc)
dh = Q_CONV * act * data.q_val(nuc)
row = (time_step, nuc, dh)
alldecayheats.append(row)
return alldecayheats
def decay_heat(series):
"""Decay heat metric returns the instantaneous decay heat of a nuclide
in a material (Q value * activity) indexed by the SimId, QualId,
ResourceId, ObjId, TimeCreated, and NucId.
"""
tools.raise_no_pyne('DecayHeat could not be computed', HAVE_PYNE)
act = series[0]
dh = []
for (simid, qual, res, obj, time, nuc), a in act.iteritems():
val = (data.MeV_per_MJ * a * data.q_val(nuc))
dh.append(val)
dh = pd.Series(dh, index=act.index)
dh.name = 'DecayHeat'
rtn = dh.reset_index()
return rtn
def decay_heat(series):
"""Decay heat metric returns the instantaneous decay heat of a nuclide
in a material (Q value * activity) indexed by the SimId, QualId,
ResourceId, ObjId, TimeCreated, and NucId.
"""
tools.raise_no_pyne('DecayHeat could not be computed', HAVE_PYNE)
act = series[0]
dh = []
for (simid, qual, res, obj, time, nuc), a in act.iteritems():
val = (data.MeV_per_MJ * a * data.q_val(nuc))
dh.append(val)
dh = pd.Series(dh, index=act.index)
dh.name = 'DecayHeat'
rtn = dh.reset_index()
return rtn
def inventories_decayheat(evaler, facilities=(), nucs=()):
"""
Get a Inventory PDF including the decay heat of the inventory in the selected
facilities. Applying nuclides selection when required.
Parameters
----------
evaler : evaler
facilities : of the facility
nucs : of nuclide to select.
"""
if len(nucs) != 0:
nucs = format_nucs(nucs)
df = inventories_activity(evaler, facilities, nucs)
for i, row in df.iterrows():
val = data.MeV_per_MJ * \
row['Activity'] * data.q_val(int(row['NucId']))
df.set_value(i, 'DecayHeat', val)
return df
def inventories_decayheat(evaler, facilities=(), nucs=()):
"""
Get a Inventory PDF including the decay heat of the inventory in the selected
facilities. Applying nuclides selection when required.
Parameters
----------
evaler : evaler
facilities : of the facility
nucs : of nuclide to select.
"""
if len(nucs) != 0:
nucs = format_nucs(nucs)
df = inventories_activity(evaler, facilities, nucs)
for i, row in df.iterrows():
val = data.MeV_per_MJ * \
row['Activity'] * data.q_val(int(row['NucId']))
df.set_value(i, 'DecayHeat', val)
return df
def test_q_val():
assert_equal(data.q_val(110240001), 0.473)
assert_equal(data.q_val("H1"), 0.0)
assert_equal(data.q_val(92235), 4.674)
def test_q_val():
assert_equal(data.q_val(110240001), 0.473)
assert_equal(data.q_val('H1'), 0.0)
assert_equal(data.q_val(92235), 4.674)